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2-Mercapto-4,5,6-trimethylnicotinonitrile

Also known as: 2-mercapto-4,5,6-trimethylnicotinonitrile, 4,5,6-trimethyl-2-thioxo-1,2-dihydropyridine-3-carbonitrile, 4,5,6-trimethyl-2-sulfanylidene-1H-pyridine-3-carbonitrile

2-Mercapto-4,5,6-trimethylnicotinonitrile (CAS 128917-84-0) is a compound in the Nitrogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C9H10N2S and a molecular weight of 178.25400 g/mol. Key properties include a melting point of 276ºC, a boiling point of 260.1ºC at 760 mmHg, a density of 1.17 g/cm3 and a flash point of 111.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
128917-84-0
Jingsj CID
J-1454452-6
Molecular Formula
C9H10N2S
Molecular Weight
178.25400 g/mol
Category
Nitrogen Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point276ºC
Boiling Point260.1ºC at 760 mmHg
Density1.17 g/cm3
Flash Point111.1ºC
Exact Mass178.05600
PSA75.48000
LogP2.16718
Vapor Pressure0.0125mmHg at 25°C
Refractive Index1.591

Customs & Trade Information

HS Code2933399090
Summary2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 2-Mercapto-4,5,6-trimethylnicotinonitrile?

The CAS number of 2-Mercapto-4,5,6-trimethylnicotinonitrile is 128917-84-0.

What are the molecular formula and molecular weight of 2-Mercapto-4,5,6-trimethylnicotinonitrile?

2-Mercapto-4,5,6-trimethylnicotinonitrile has molecular formula C9H10N2S and molecular weight 178.25400 g/mol.

What are the upstream and downstream products of 2-Mercapto-4,5,6-trimethylnicotinonitrile?

For 2-Mercapto-4,5,6-trimethylnicotinonitrile, Upstream Products: 2-Cyanothioacetamide, 3-Methyl-2,4-pentanedione, 2,4-Pentanedione.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "2-Mercapto-4,5,6-trimethylnicotinonitrile (CAS 128917-84-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1454452-6 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.